Seco 00013378 Indexable Turning Toolholder Right Hand

Product Description

The SECO 00013378 is a right-hand STGC-style indexable turning toolholder designed for use on manual and CNC lathes in production and job-shop turning operations. It features a neutral rake angle of 0 degrees and a 90-degree lead angle, making it well-suited for straight turning and facing applications where consistent cutting geometry is required. The toolholder accepts SC..32.51 inserts secured via a screw-lock clamping method, providing rigid insert retention under interrupted and continuous cutting conditions. The shank measures 0.625 inches wide by 0.625 inches tall, with an overall length of 4 inches. Toolholder material is steel. This holder is compatible with inserts sized to a 0.375-inch inscribed circle.

This toolholder is intended for turning applications across a broad range of workpiece materials, including ferrous, non-ferrous, stainless, heat-resistant alloys, and general-purpose materials — reflected in its universal primary workpiece material rating. It is a single-application tool, not a multi-use holder, and is designed for right-hand cutting direction. Typical use is on the outside diameter of a workpiece in a standard tool post or turret setup. The back-of-bar to cutting-edge dimension is 0.75 inches, which affects center-height setup when mounting in the machine.

Key Features

• STGC toolholder style with 90-degree lead angle for straight turning and facing
• Neutral 0-degree rake angle for versatile material compatibility
• Screw-lock insert clamping for positive, repeatable insert retention
• Accepts SC..32.51 inserts with a 0.375-inch inscribed circle (compatible insert size code TC325)
• Square 0.625 inches x 0.625 inches steel shank fits standard tool posts and turrets
• Universal workpiece material rating: H, K, M, N, P, and S material groups

Compatibility

Designed to accept SC..32.51 series inserts with a 0.375-inch inscribed circle and compatible insert size code TC325. Fits tool posts and turrets sized for a 0.625-inch square shank.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Before mounting, ensure the machine spindle is stopped and locked out per applicable machine guarding and lockout-tagout procedures. Set the toolholder to center height using shims or an adjustable tool post, referencing the 0.75-inch back-of-bar to cutting-edge dimension. Torque the insert screw to the insert manufacturer's specification using the appropriate Torx or hex key — do not over-tighten, as this can fracture the insert.